<template>
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>

    </el-breadcrumb>

    <!--    卡片区域-->
    <el-card class="">


      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList"
          >

            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible='true'">添加用户</el-button>
        </el-col>
      </el-row>

      <!--      用户列表区-->
      <el-table :data="userList"
                border
                stripe
      >
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" circle @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" circle @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" circle @click="setRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>
      <!--      //分页-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </el-card>
    <!--添加用户-->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
    >
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!--    修改用户的对话框-->
    <el-dialog
        title="提示"
        :visible.sync="editDialogVisiable"
        width="50%"
        @close="editDialogClosed"
    >
      <el-form :model="editForm" status-icon :rules="editFormrRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>

        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisiable = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>


<!--  分配角色的对话框  -->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisiable"
        width="50%"
        @close="setRoleDialogClosed"
        >

        <div>
          <p>当前的用户：{{userInfo.username}}</p>
          <p>当前的角色：{{userInfo.role_name}}</p>
          <p>分配新角色:

              <el-select v-model="selectedRoleId" placeholder="请选择">
                <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                </el-option>
              </el-select>

          </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisiable = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  name: "Users",
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式：
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        return cb()

      }
      cb(new Error('请输入合法的邮箱'))
    }

    //手机号的规则；

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 3, max: 10, message: '用户的长度在3~10个字符之间', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入用密码', trigger: 'blur'},
          {min: 6, max: 15, message: '用户的长度在6~15个字符之间', trigger: 'blur'}
        ],

        email: [
          {required: true, message: '请输入用邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: 'blur'}

        ],
        mobile: [
          {required: true, message: '请输入用邮箱', trigger: 'blur'},

        ],

      },
      editDialogVisiable: false,

      editForm: {},

      //修改表单的用户规则：
      editFormrRules: {
        email: [
          {required: true, message: '请输入用邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: "blur"}
        ],
        mobile: [
          {required: true, message: '请输入用邮箱', trigger: 'blur'},
        ]
      },
      setRoleDialogVisiable:false,
      //需要被分配角色的用户信息
      userInfo:'',
      rolesList:[],
      selectedRoleId:''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const {data: res} = await this.$http.get('users', {params: this.queryInfo})
      console.log('res123', res);
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users;
      this.total = res.data.total;

    },
    // 监听 pagesize改变的监听事件
    handleSizeChange(newSize) {
      console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },

    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList()
    },
//    监听switch状态的改变
    async userStateChanged(userinfo) {
      console.log(userinfo, "userState");
      const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)


      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success("更新状态成功")
      this.getUserList();
    },
    //对话框关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },

    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        console.log(valid)

        if (!valid) return

        //可以发起添加用户的网络请求
        const {data: res} = await this.$http.post('users', this.addForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }

        this.$message.success('添加用户成功!')
        //隐藏添加用户的对话框
        this.addDialogVisible = false;

        //重新获取用户列表
        this.getUserList();
      })
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {

      console.log(id, "id")
      const {data: res} = await this.$http.get('users/' + id)
      console.log(res, 'res123')
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisiable = true;

    },


    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },

    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {

        if (!valid) return
        //发起修改用户信息的请求
        const {data: res} = await this.$http.put('users/' + this.editForm.id,
            {
              email: this.editForm.email,
              mobile: this.editForm.mobile
            })


        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }

        //关闭对话框
        this.editDialogVisiable = false
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功')
      })


    },

    async removeUserById(id) {

      //弹框删除确认
      const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      //如果确认删除，返回值为字符串 confirm
      //如果用户取消了删除，则返回字符串 cancel

      // console.log(confirmResult,'confirmResult')
      if(confirmResult !=='confirm'){
        return this.$message.info('已取消删除')

      }

     const {data:res}=await this.$http.delete('users/'+id)
      if(res.meta.status !==200){
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功')
      this.getUserList()

    },

    async setRole(userInfo) {
      this.userInfo=userInfo

      //在展示对画框之前，获取所有的角色的列表

      const {data:res}=await this.$http.get('roles')
      if(res.meta.status !==200){
        return this.$message.error('获取角色列表失败!')
      }

      this.rolesList=res.data;

      this.setRoleDialogVisiable=true;
    },
//点击按钮，分配角色
    async saveRoleInfo() {
      if( !this.selectedRoleId) {
          return  this.$message.error('请选择要分配的角色')
      }
      console.log(this.userInfo.id,'this.userInfo.id')
     const {data:res}=await  this.$http.put(`users/${this.userInfo.id}/role`,{
        rid:this.selectedRoleId
      })

      if(res.meta.status !==200) {
        return this.$message.error('更新角色失败')
      }

        this.$message.success('更新角色成功');

        this.getUserList()
        this.setRoleDialogVisiable=false;

    },

    setRoleDialogClosed() {
      this.selectedRoleId=''
          this.userInfo={}
    }

  }
}
</script>

<style lang="less" scoped>

</style>
